Go to advanced search

by mwrich4
Fri Oct 09, 2020 2:55 pm
Forum: General discussion
Topic: Why the Name Raspberry
Replies: 24
Views: 681

Re: Why the Name Raspberry

Since no one bothered to directly answer the poster's question, stated in the title. In an interview and also found on the wiki: "According to Upton, the name "Raspberry Pi" was chosen with "Raspberry" as an ode to a tradition of naming early computer companies after fruit, and "Pi" as a reference t...
by mwrich4
Sat Oct 03, 2020 6:11 pm
Forum: Off topic discussion
Topic: Any good sites for viewing/sharing the RaspPi labors of love?
Replies: 2
Views: 532

Any good sites for viewing/sharing the RaspPi labors of love?

Looking for websites where individuals share and discuss their projects from a design and implementation point of view. Most sites are simply a showcase I don't offer any interaction. EDIT1: There are some posts about projects here. Most posts here are asking for help for a specific issue or simply ...
by mwrich4
Sun Sep 27, 2020 1:49 pm
Forum: Beginners
Topic: Sensor for measuring cylinder piston rod
Replies: 4
Views: 201

Re: Sensor for measuring cylinder piston rod

I think the cheapest would something to translate the linear movement to rotary. Wire/spool, rack/pinion, belt/gear.
I mention this not knowing how fast or often the piston will be operating.

Then use a rotary optical quadrature sensor to count off the ticks.
by mwrich4
Sun Sep 27, 2020 1:37 pm
Forum: General discussion
Topic: Why is using an RTC so complicated?
Replies: 17
Views: 659

Re: Why is using an RTC so complicated?

What? Please educate yourself before posting misleading statements, almost every X86 computer in the world has a RTC. early PCs (x86) did NOT have an RTC either. It was an add-on card with 'extra' commands as well. RTC was added with the AT series for user convenience but then required an external ...
by mwrich4
Sun Sep 27, 2020 1:23 pm
Forum: Beginners
Topic: buster: /tmp gets cleaned on every boot
Replies: 22
Views: 634

Re: buster: /tmp gets cleaned on every boot

From even the early days of Unix, /tmp was always cleared on startup. This was to give a place for session-related transient files that had no purpose after a reboot. System logs didn't get put into /tmp so reviewing logs was never an issue. If you have a program that generates logs that should be p...
by mwrich4
Tue Sep 22, 2020 6:44 pm
Forum: General discussion
Topic: How long does a raspberry pi live?
Replies: 13
Views: 742

Re: How long does a raspberry pi live?

In this era of overclocking it would be nice to know if the Broadcom SoC still uses a soldered heat spreader, the metal outer layer on the chip that contacts the heat-sink. Intel has recently gone back to soldered because modders have determined that the internal compound will dry out just like heat...
by mwrich4
Sun Sep 13, 2020 10:20 pm
Forum: Automation, sensing and robotics
Topic: My temp sensor ds18b20 doesn't seems accurate
Replies: 19
Views: 4851

Re: My temp sensor ds18b20 doesn't seems accurate

Buy a thermistor and use an ADC to sample voltage after a properly scaled voltage divider and then calibrate for a more precise reading. You can set the resolution of the ds18b20 to 12-bit, try calibrating, and check for stability. But as said, this part is rated at +/- 0.5C. The one-wire bus is an ...
by mwrich4
Thu Aug 27, 2020 10:35 am
Forum: General discussion
Topic: I have New Pi 8GB! Solar Powered Webserver!!
Replies: 60
Views: 4200

Re: I have New Pi 8GB! Solar Powered Webserver!!

I don't.

Perhaps reach out to the young lady who seems to write most of the blog entries.
by mwrich4
Wed Aug 26, 2020 3:38 am
Forum: General discussion
Topic: I have New Pi 8GB! Solar Powered Webserver!!
Replies: 60
Views: 4200

Re: I have New Pi 8GB! and Plans in the making....

mwrich4 wrote:
Mon Jul 13, 2020 7:02 pm
PLEASE consider creating a summary of your project and a brief outline of the growth for submission to rasppi.org. It would make a great inspirational BLOG entry for the Raspberry Pi site.
was trying to use slang above, sorry

www.raspberrypi.org
by mwrich4
Sun Aug 23, 2020 10:33 am
Forum: General discussion
Topic: How necessary is extra cooling for the RPi4 now?
Replies: 26
Views: 2020

Re: How necessary is extra cooling for the RPi4 now?

Best, if you have to ask, still the same need for original release (nothing magical happened). If you have issues then rethink design.
by mwrich4
Sun Aug 23, 2020 10:25 am
Forum: Troubleshooting
Topic: Powering Raspberry pi 4 from a PC
Replies: 13
Views: 516

Re: Powering Raspberry pi 4 from a PC

You CAN carefully get 5v from the 5v Mains. But be SURE wiring is correct. LOTS of amps available to toast errors.
by mwrich4
Wed Aug 12, 2020 11:35 pm
Forum: Graphics, sound and multimedia
Topic: How to make the multi-touch function screen work with Raspberry Pi 4B
Replies: 9
Views: 900

Re: How to make the multi-touch function screen work with Raspberry Pi 4B

Remember, the sales guy will always say it works. You can plow a field with a BMW SUV, but it's not a good fit. USB 3 support often means that the USB2 pathway will work with USB3. It doesn't mean that it works well. Press the WaveShare site to provide their test-case build and their target board. C...
by mwrich4
Wed Aug 12, 2020 11:29 pm
Forum: General discussion
Topic: Is Pi4 desktop experience supposed to be this bad?
Replies: 86
Views: 5033

Re: Is Pi4 desktop experience supposed to be this bad?

I remember Open Desktop on a 386. Or running the Windowed desktop on a DEC alpha. We didn't call it tearing back then, we ALL knew it was slow graphics hardware and we still got a LOT of real-world work done on it. RaspPi may not be super glamorous for high-end GUI displays. It was designed for grea...
by mwrich4
Tue Aug 04, 2020 6:36 pm
Forum: Off topic discussion
Topic: Suggestion: Locked down, moderated HOWTO sub group
Replies: 6
Views: 934

Re: Suggestion: Locked down, moderated HOWTO sub group

mwrich4 wrote:
Sun Aug 02, 2020 1:57 pm
I would buy a GOOD reference book for PiOS. Suppose I should search for one under Debian I guess.
Found a great place for ideas and reference
Pi My Life Up site contains MANY guides
by mwrich4
Tue Aug 04, 2020 5:45 pm
Forum: Other projects
Topic: Mini-ITX Motherboard
Replies: 21
Views: 17324

Re: Mini-ITX Motherboard

I've got mine up and running - cannot do much with it yet because of other commitments but .... 1st impression is very good. I thought placing a Pi4 8GB on this would be a fun use plus then able to add some drives in the case with the extra power. Does anyone still have any snippets other than the ...
by mwrich4
Sun Aug 02, 2020 1:57 pm
Forum: Off topic discussion
Topic: Suggestion: Locked down, moderated HOWTO sub group
Replies: 6
Views: 934

Re: Suggestion: Locked down, moderated HOWTO sub group

If HOWTO were put in a place like GitHub they could be kept fresh by feedback from users. It's not really a fresh idea ... https://www.tldp.org/HOWTO/HOWTO-INDEX/categories.html This is a good example of a useful guide without a home: USB HD Sticky Since PiOS is its own dialect, there should be very...
by mwrich4
Sat Aug 01, 2020 11:41 pm
Forum: Off topic discussion
Topic: Suggestion: Locked down, moderated HOWTO sub group
Replies: 6
Views: 934

Re: Suggestion: Locked down, moderated HOWTO sub group

To clarify. I've used Xenix, SCO Unix, BSD, DataGeneral, TI, Slackware, Yggdrasil, Debian, and now RaspPi OS. Preparing surfaces (remember badtrack), partitioning, formatting, adding divisions, making bootable, making tape backups, tar or cpio all are the same processes. But, each environment has su...
by mwrich4
Sat Aug 01, 2020 11:29 pm
Forum: Off topic discussion
Topic: Suggestion: Locked down, moderated HOWTO sub group
Replies: 6
Views: 934

Suggestion: Locked down, moderated HOWTO sub group

>Sat Aug 01, 2020 1:25 am< Back in the days of the Yggdrasil Linux distribution, one of the strengths was the thick reference book of recipes that work. Reinventing the wheel after 30 years gets old. Make a knowledge base and push the support community to new levels of thought instead of being bogge...
by mwrich4
Sun Jul 26, 2020 3:45 pm
Forum: General discussion
Topic: Does Raspberry PI 4 have problems in 2020?
Replies: 45
Views: 3127

Re: Does Raspberry PI 4 have problems in 2020?

So much help desk time is wasted with uncertainty when the board rev is not updated religiously.
by mwrich4
Thu Jul 23, 2020 6:59 pm
Forum: Beginners
Topic: What is the default IP address of the Raspberry Pi OS (32-bit)
Replies: 11
Views: 543

Re: What is the default IP address of the Raspberry Pi OS (32-bit)

I can see the machine address and associated IP each Pi I plugin listed on the webpage within my ATT router. Most home routers have an access page for administration. Commonly 192.168.1.1 or 192.168.1.254 for home networks. At work, you may have 10.xx.xx.xx (class A private) or 172.xx.xx.xx (class B...
by mwrich4
Thu Jul 23, 2020 7:21 am
Forum: Off topic discussion
Topic: Wish list for the foundation
Replies: 53
Views: 6317

Re: Wish list for the foundation

When I think of RaspberryPi, I often get caught up wishing for things that other development boards offer. Similar to the STM-Discovery kit. Admittedly, when first ordered my RaspPi (and waited). I was imagining a cheap platform for hardware level-programming. It offers a lot of features but not eve...
by mwrich4
Thu Jul 23, 2020 5:43 am
Forum: Beginners
Topic: Calculating resistance through charging time of Capacitor
Replies: 6
Views: 290

Re: Calculating resistance through charging time of Capacitor

Doing it in code on a general-purpose OS will work somewhat. 'Working' depends on the speed, precision, and stability you want. A scope is the best way to learn and calibrate it. To increase any of the 3 you may need to consider an external R/C paired with a comparator and gated timer. Even then bal...
by mwrich4
Tue Jul 21, 2020 7:16 pm
Forum: General discussion
Topic: Raspberry Pi Posts 'necro posting'
Replies: 35
Views: 1421

Re: Raspberry Pi Posts 'necro posting'

echmain wrote:
Tue Jul 21, 2020 6:49 pm
Maybe millions of purchasers are busy actually *using* their Pis instead of posting to forums.
And how many would you say are 'fresh' newbies ?
by mwrich4
Tue Jul 21, 2020 6:44 pm
Forum: General discussion
Topic: Raspberry Pi Posts 'necro posting'
Replies: 35
Views: 1421

Re: Raspberry Pi Posts 'necro posting'

Living guides to 'COMMON' issues is sorely needed. I want RaspPi to succeed. I want new people to enjoy the platform Ebon envisioned. As an experienced low-level developer. People NEED a repository of 'RECIPES' to skip having to re-develop what is already know. (They may not know that having bought ...
by mwrich4
Tue Jul 21, 2020 6:34 pm
Forum: General discussion
Topic: Raspberry Pi Posts 'necro posting'
Replies: 35
Views: 1421

Re: Raspberry Pi Posts 'necro posting'

If posting were so active, 6 months would NOT be an issue. I've been following 'unread posts' for 2 months. Very few venture into 'previously discussed' territory. Often, the ones that do, have something to add. With 11 million purchasers, a person might expect deeper questions. Just because a perso...

Go to advanced search